zshrc: Add nvm support
zshrc: Display untracked files as "dirty"
zshrc: Don't add all keys to the keychain
.gitignore: Ignore "ssh" directory
ngrok
powconfig
pythonrc: cleanup
zprofile: Remove nvm loading from here
bash/alias: Refine how we call hub
oh-my-zsh: Update submodule
nvm: Update submodule